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Net Earnings Per Share | 6 Months Ended
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Jun. 30, 2015
Earnings Per Share [Abstract] |
Net Earnings Per Share | Net Earnings Per Share The calculations of net earnings per share – basic and net earnings per share – diluted were as follows:
| 3 Months Ended |  | 6 months ended
| June 30, |  | June 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
Net earnings available to common shareholders | $ | 105.7 |  |  | $ | 109.8 |  |  | $ | 171.4 |  |  | $ | 179.9 |
Weighted-average common shares outstanding (in millions) |  |  |  |  |  |  |
Weighted-average common shares outstanding - basic | 78.3 |  |  | 79.9 |  |  | 78.5 |  |  | 79.9 |
Effect of dilutive securities - stock options | 0.6 |  |  | 0.7 |  |  | 0.6 |  |  | 0.7 |
Effect of other share-based awards | 0.4 |  |  | 0.8 |  |  | 0.4 |  |  | 0.8 |
Weighted-average common shares outstanding - diluted | 79.3 |  |  | 81.4 |  |  | 79.5 |  |  | 81.4 |
Net earnings per share - basic: | $ | 1.35 |  |  | $ | 1.37 |  |  | $ | 2.18 |  |  | $ | 2.25 |
Net earnings per share - diluted: | $ | 1.33 |  |  | $ | 1.35 |  |  | $ | 2.16 |  |  | $ | 2.21 |
There were 0.3 million and 0.2 million share-based awards excluded from the calculation of net earnings per share – diluted for the three months ended June 30, 2015 and 2014, respectively, and the calculation of net earnings per share – diluted for the six months ended June 30, 2015 and 2014, respectively, as the exercise price for these awards was greater than the average market price of the common shares during the period.

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